JPH07144178A - Water washing and drying apparatus - Google Patents

Abstract

PURPOSE:To provide a water washing and drying apparatus enabling to keep washing water clean and also to shorten the time required for a drying stage to enhance the producibility. CONSTITUTION:A washing tank 1 and a drying tank 2 form a dual tank. A spiral washing path 12 is formed in the inner peripheral surface of the washing tank 1 and the upper section than a liquid surface of the washing water in the washing path 12 functions as a draining path 13. At the upper part of the draining path 13, a shower 14 is arranged and the washing water recovered from the bottom of the washing tank 1 and clarified by a washing water circulating device 3 is blown against a work A. A preliminary drying path 23 for ascending and a drying path 22 for ascending are provided in the drying tank 2, and washing water for the work A is blown off by air from the air shower 28 at the lower part of the preliminary drying path 23 and then the work A is dried by hot wind at the drying path 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water washing / drying apparatus for removing dirt adhering to the surface of a work by washing it with water.

[0002]

2. Description of the Related Art Among the double tanks having an inner tank and an outer tank, which have a vertical centerline and are coaxially arranged, the inventors of the present invention wash the work with water in the inner tank, First proposed a water washing / drying device for drying a work after washing with water between the inner tank and the inner tank (Japanese Patent Application No. 5-21314).
No. 8). In this water washing / drying device, the work is conveyed upward in a washing path that is formed spirally in the washing tank that is the inner tank, so that the work is sufficiently contacted with the washing water and the workpiece is washed. After washing, draining is performed so that sufficient washing can be continuously performed. Further, by transferring the work on the drying path formed in a spiral shape in the drying tank formed between the inner tank and the outer tank, the work can be continuously transferred in the drying tank having a relatively small volume. The work is allowed to stay for a relatively long time while being transported so that the work can be sufficiently dried. Especially, in the drying tank, a long drying path is formed by providing a descending drying path on the outer surface of the inner tank and an ascending drying path on the inner surface of the outer tank. The residence time in the space between them is lengthened to ensure sufficient drying.

[0003]

In the above-mentioned water washing / drying apparatus, the drainage is performed in the washing tank, and the descending and ascending drying paths are provided to prolong the processing time of the drying step. Although it is intended to perform sufficient drying, it is said that the work cannot be sufficiently cleaned when the contamination of the cleaning water progresses because the cleaning tank is only drained after cleaning with cleaning water. The problem arises.
In order to solve such a problem, in the previous application, the cleaning water is collected and cleaned near the surface of the cleaning water, and the cleaning water is circulated and sprayed onto the workpiece before draining to finish the workpiece. A configuration for performing cleaning is described. However, in the above-mentioned configuration, since the cleaning water near the surface of the cleaning water is collected and cleaned, it is impossible to remove the dirt and the like accumulated on the lower part of the cleaning water such as the metal scraps adhering to the work. I have a problem. Also, although a drying path for descending and a drying path for ascending are provided, since the drying path needs to be long enough, as a result, the drying process requires a long time, and the drying tank is sufficiently miniaturized. It has not come to.

The present invention is a further improvement of the above-mentioned invention, which makes it possible to keep the cleaning water more clean, and after cleaning the cleaning water collected from the cleaning tank, for finishing cleaning. An object of the present invention is to provide a water washing / drying device which can reduce the amount of wastewater generated to the outside to reduce the influence on the environment and further shorten the drying process to improve the productivity.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 is a cleaning tank which is formed in a cylindrical shape having a vertical centerline and into which cleaning water is introduced, and an outer periphery of the cleaning tank. A drying tank that is coaxially arranged integrally with the cleaning tank, surrounding the
A shaker that gives vertical and circumferential vibrations to the cleaning tank and the drying tank, and a work that is spirally installed along the inner surface of the cleaning tank and that is put into the bottom of the cleaning tank are shaken by the vibrator. A cleaning path that conveys to the communication port that opens to the upper side wall of the cleaning tank, and a workpiece that has been spirally provided along the outer surface of the cleaning tank and that has passed through the communication port of the cleaning tank is dried by vibration from a vibrator. A pre-drying path that conveys toward the bottom of the tank, and a workpiece that was spirally provided along the inner surface of the drying path and that was placed at the bottom of the drying path were provided at the top of the drying tank by vibration from a vibrator. In a water washing / drying device equipped with a drying passage that conveys to the outlet, a drainage passage that extends the upper part of the washing passage above the level of the washing water, and a finishing drainage pipe that is placed above the drainage passage With a finishing shower that sprays the cleaning water of The washing water recovered from the bottom of the cleaning tank and the washing water circulation unit to supply the shower finish and cleaned,
It is characterized by comprising an air shower arranged above the lower part of the pre-drying path and ejecting air so as to blow off the cleaning water adhering to the work.

[0006]

According to the structure of the present invention, since the cleaning water collected from the bottom of the cleaning tank is used as the cleaning water for the final cleaning after being cleaned by the cleaning water circulating device, the wastes of the work settled on the bottom of the cleaning tank, etc. Thus, the clean water in the cleaning tank can always be kept clean. Moreover, since the cleaning water in the cleaning tank is circulated and used by the cleaning water circulation device, the amount of drainage to the outside is reduced, and as a result, the influence on the environment can be reduced. Furthermore, by installing an air shower that blows out air so as to blow the cleaning water adhering to the work above the lower part of the pre-drying path that conveys the work washed in the cleaning tank to the bottom of the drying tank, draining can be performed. Since the cleaning water adhering to the formed work can be blown off by air, the time required for the subsequent drying can be shortened, and the time required for the drying step can be greatly shortened as compared with the conventional configuration.

[0007]

EXAMPLE In this example, as shown in FIGS. 1 and 2,
A double tank provided with a bottomed cylindrical cleaning tank 1 and a bottomed cylindrical drying tank 2 coaxially arranged on the outer periphery of the cleaning tank 1, wherein an upper peripheral wall of the cleaning tank 1 is used. A communication port 11 for communicating the inside and the outside of the cleaning tank 1 is opened in the cleaning tank 1, and a spiral cleaning path 12 extending from the bottom to the communication port 11 is fixed to the inner surface of the cleaning tank 1. An outer end of the cleaning passage 12 is fixed to the inner surface of the cleaning tank 1 so as to be supported in a cantilever manner, and an inner end is provided with a guard piece projecting upward so as to be conveyed on the cleaning passage 12 as described later. It prevents the workpiece from falling. Cleaning water such as water or warm water is introduced into the cleaning tank 1, and a large number of drain holes (not shown) are formed in the cleaning passage 12 above the liquid surface of the cleaning water. That is, the portion of the cleaning passage 12 that extends above the surface of the cleaning water functions as the drainage passage 13. Further, a finishing shower 14 is disposed above the surface of the cleaning water and above the cleaning passage 12 to discharge the cleaning water for finishing.

A recovery port 15 is opened at the bottom of the cleaning tank 1, and the cleaning water recovered from the recovery port 15 is introduced into the cleaning water circulation device 3 through a drain 16. The wash water circulation device 3 includes a tank 31 for storing wash water, and the filter 33 is sucked up from the tank 31 by a pump 32.
The cleaning water is discharged through the finishing shower 14 via the finishing shower 14. Therefore, the cleaning water circulates in a closed system, and no drainage to the outside occurs, so that it has almost no effect on the environment. Moreover, since the cleaning water collected from the lower portion of the cleaning tank 1 is cleaned and circulated by the filter 33, the impurities mixed in the cleaning water are collected to keep the cleaning water clean and the cleaning water is collected at the bottom of the cleaning tank 1. It becomes possible to collect scraps and the like of the work A.

On the other hand, an outlet 21 is provided on the upper peripheral wall of the drying tank 2.
Is opened, and a drying path 22 formed in a spiral shape from the bottom to the outlet 21 is fixed to the inner surface of the drying tank 2. Further, in the space between the cleaning tank 1 and the drying tank 2, a preliminary drying path 23 formed in a spiral shape from the communication port 11 to the bottom of the drying tank 2 is fixed to the outer surface of the cleaning tank 1. Similar to the cleaning path 12, the drying path 22 and the preliminary drying path 23 have a shape in which one end is fixed to the drying tank 2 or the cleaning tank 1 and cantilevered, and a guard piece is projectingly provided on the other end. Has become. The height of the drying tank 2 is larger than that of the cleaning tank 1, and the drying path 22 is formed sufficiently long.

The double tank consisting of the cleaning tank 1 and the drying tank 2 is mounted on the vibration exciter 4, and the vibration exciter 4 gives a combined vibration in the circumferential direction and the vertical direction. ing. However, the bottom surface of the cleaning tank 1 is formed in a shape in which the central portion bulges upward, and the work A dropped from the chute 5 and introduced into the bottom portion of the cleaning tank 1 is caused by the vibration from the vibrator 4. Collected in the peripheral portion of the bottom of the cleaning tank 1, the cleaning path 12
It will be washed by the washing water while moving in the ascending direction. The work A, which has been raised in the cleaning passage 12 and washed, is drained by the water draining passage 13, then passes through the communication port 11, and is introduced into the space between the cleaning tank 1 and the drying tank 2. Here, the work 5 descends to the bottom of the drying tank 2 on the preliminary drying path 23, and when reaching the bottom of the drying tank 2, the work 5 moves to the drying path 22 and is conveyed so as to rise on the drying path 22. In this way, finally it is discharged to the outside of the drying tank 2 through the outlet 21.

By the way, the drying passage 22 is formed in a rectangular tube shape, and the internal space is vertically divided by partition walls 24, and a large number of through holes 25 are formed in the partition walls 24. At the upper part of the drying passage 22, two introduction pipes 26 for introducing hot air into the spaces above and below the drying passage 22 respectively.
a and 26b are connected. A discharge port 27 for discharging hot air from the drying passage 22 is opened in the lower peripheral wall of the drying passage 22. The work A moves upward on the partition wall 24, and the hot air passes above and below the work A, whereby the work A is uniformly dried.

Here, an air shower 28 is arranged above the lower part of the preliminary drying path 23 so that the cleaning water adhering to the work A is blown off by the air discharged from the air shower 28. Therefore, the work A, which has been washed up in the washing tank 1 and drained, is shaken off while the work A is being conveyed in the preliminary drying path 23, and is eventually blown off by air. The cleaning water blown off by the air is discharged to the outside of the drying tank 2 through the drain 29.
After the cleaning water is blown off in this way, the work A
Since it is dried while being exposed to hot air in the drying path 22, the amount of heat required for drying can be reduced, the energy required for drying can be reduced, and the time required for the drying step can be shortened.

A controller 7 for controlling the hot air generator 6 for introducing hot air into the drying passage 22 and the vibrator 4.
Is mounted on the anti-vibration skid 8 together with the shaker 4 and the tank 31, and the entire apparatus described above can be handled collectively by being mounted on one anti-vibration skid 8. become. That is, if the anti-vibration skid 8 is lifted by using a hand lift or the like, the entire apparatus can be moved in a lump. In addition, since the device is mounted on the vibration isolation skid 8,
Therefore, it is possible to prevent the vibration generated in the above from affecting other peripheral devices.

[0014]

As described above, according to the present invention, the cleaning water recovered from the bottom of the cleaning tank is used as the cleaning water for the final cleaning after cleaning the cleaning water by the cleaning water circulating device, and therefore, the work that precipitates on the bottom of the cleaning tank can be used. You can collect scraps,
There is an advantage that the clean water in the cleaning tank can always be kept clean. Moreover, since the cleaning water in the cleaning tank is circulated and used by the cleaning water circulation device, the amount of drainage to the outside is reduced, and as a result, the effect on the environment can be reduced. In addition, an air shower is installed above the lower part of the pre-drying path that conveys the work washed up in the washing tank to the bottom of the drying tank. The cleaning water adhering to the work can be blown off by air, and the time required for subsequent drying can be shortened, which has the advantage that the time required for the drying step can be greatly shortened compared to the conventional configuration. .

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment.

FIG. 2 is a plan view showing a cleaning tank and a drying tank used in Examples.

[Explanation of symbols]

 1 Washing Tank 2 Drying Tank 3 Washing Water Circulation Device 4 Shaker 11 Communication Port 12 Washing Path 13 Draining Path 14 Finishing Shower 21 Outlet 22 Drying Path 23 Pre-Drying Path 28 Air Shower A Work

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Tsuge 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (1)

[Claims] 1. A cleaning tank, which is formed in a cylindrical shape having a vertical centerline and into which cleaning water is introduced, a drying tank which surrounds the outer periphery of the cleaning tank and is coaxially arranged integrally with the cleaning tank, A shaker that gives vertical and circumferential vibrations to the tank and drying tank, and a workpiece that is spirally installed along the inner surface of the cleaning tank and that has been put into the bottom of the cleaning tank is cleaned by the vibration from the vibrator. A cleaning path that conveys to the communication port that opens to the upper side wall of the tank, and a workpiece that passes through the communication port of the cleaning tank that is spirally provided along the outer surface of the cleaning tank and that vibrates from the vibration exciter The pre-drying path that is conveyed toward the bottom of the drying path, and the workpiece that is spirally provided along the inner surface of the drying path and that is input to the bottom of the drying path is installed at the top of the drying tank by the vibration from the vibrator. Water washing / drying device with a drying path that conveys toward the exit In, the upper part of the cleaning channel extends above the surface of the cleaning water, the draining channel is installed above the draining channel, the finishing shower for spraying the cleaning water for finish cleaning onto the workpiece, and the bottom of the cleaning tank are collected. The cleaning water circulating device for cleaning the cleaning water thus prepared and supplying it to the finishing shower, and the air shower arranged above the lower part of the pre-drying passage to blow out the air so as to blow the cleaning water adhering to the workpiece are provided. Characteristic water washing and drying device.